Chemistry - Thermochemistry - Energy diagrams - Reading Energy Diagrams

5-step guide to interpreting energy diagrams. Step 1: 'THE AXES: Y-axis = Potential Energy (or Enthalpy, H). X-axis = Reaction Progress (from reactants → products). NOT time!' Step 2: 'ΔH (enthalpy change): The difference between product and reactant energy levels. ΔH = H(products) - H(reactants). N